Across an expanse of the Nevada desert, in the center of the state, lies a volcanic crater reaching 3,280 feet in width and 427 feet in depth. It is now extinct — its last-known eruption ...

Many exposed to radioactive fallout from above-ground nuclear testing in Nevada, Utah and Arizona ... The 1,280-feet wide Sedan Crater was created by the Sedan detonation in 1962 as part of ...